20199553904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{379}}^1\times {\mathrm{881}}^1$

素因数の和:1486

約数の個数: 80

約数和(自身を含む): 41559840000

約数和(自身を除く): 21360286096

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 199, 304, 379, 398, 758, 796, 881, 1516, 1592, 1762, 3032, 3184, 3524, 3781, 6064, 7048, 7201, 7562, 14096, 14402, 15124, 16739, 28804, 30248, 33478, 57608, 60496, 66956, 75421, 115216, 133912, 150842, 175319, 267824, 301684, 333899, 350638, 603368, 667798, 701276, 1206736, 1335596, 1402552, 1432999, 2671192, 2805104, 2865998, 3331061, 5342384, 5731996, 6344081, 6662122, 11463992, 12688162, 13324244, 22927984, 25376324, 26648488, 50752648, 53296976, 66445901, 101505296, 132891802, 265783604, 531567208, 1063134416, 1262472119, 2524944238, 5049888476, 10099776952, 20199553904]

約数ペア:

[(1, 20199553904), (2, 10099776952), (4, 5049888476), (8, 2524944238), (16, 1262472119), (19, 1063134416), (38, 531567208), (76, 265783604), (152, 132891802), (199, 101505296), (304, 66445901), (379, 53296976), (398, 50752648), (758, 26648488), (796, 25376324), (881, 22927984), (1516, 13324244), (1592, 12688162), (1762, 11463992), (3032, 6662122), (3184, 6344081), (3524, 5731996), (3781, 5342384), (6064, 3331061), (7048, 2865998), (7201, 2805104), (7562, 2671192), (14096, 1432999), (14402, 1402552), (15124, 1335596), (16739, 1206736), (28804, 701276), (30248, 667798), (33478, 603368), (57608, 350638), (60496, 333899), (66956, 301684), (75421, 267824), (115216, 175319), (133912, 150842)]